Abstract
In this paper is shown that an optimized multilayer coating on the premirror and on the grating of a grazing incidence monochromator would improve the transmission up to an order magnitude for a special scan mode. The measured reflectivities for this three-period multilayer coating are compared to those for a thin gold film. For both objects the reflectivities can successfully be calculated using recently published optical constants and taking account surface roughness. Evaporated onto blazed grating an identical multilayer the efficiency at the anticipated working points just as expected from intuitive arguments.
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